What statement is descriptive of a concussion?
a. Petechial hemorrhages cause amnesia.
b. Visible bruising and tearing of cerebral tissue occur.
c. It is a transient and reversible neuronal dysfunction.
d. It is a slight lesion that develops remote from the site of trauma.
ANS: C
A concussion is a transient, reversible neuronal dysfunction with instantaneous loss of awareness and responsiveness resulting from trauma to the head. Petechial hemorrhages on the superficial aspects of the brain along the point of impact are a type of contusion but are not necessarily associated with amnesia. A contusion is visible bruising and tearing of cerebral tissue. Contrecoup is a lesion that develops remote from the site of trauma as a result of an acceleration–deceleration injury.
You might also like to view...
The nurse can best instruct a client to avoid the acquisition of hookworm by
a. advising the client not to eat raw pork products. b. advising the client to drink only bottled water when traveling. c. encouraging the client to wear shoes outdoors. d. teaching the client good hand-washing technique.
A 55-year-old male patient has an abnormal digital rectal examination (DRE) with a PSA (prostate-specific antigen) level of 18 ng/mL. The nurse realizes that this patient might be scheduled for which diagnostic test?
1. transrectal ultrasonography (TRUS) 2. bone scan 3. MRI 4. CT scan of the spine
Which schedule does methcathinone (Cat) belong?
A. I B. II C. III D. IV
If one of the effects of heroin is constipation, then withdrawal symptoms after chronic heroin abuse would include
A. increased constipation B. diarrhea C. a period of constipation followed by normal intestinal activity D. increased dizziness and headache pain